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MCQs

Total Questions : 150 | Page 3 of 15 pages
Question 21. Which of the following organic compounds are present in biogas?
  1.    Butane gas and carbon dioxide
  2.    Methane gas and carbon dioxide
  3.    Nitrogen
  4.    Sodium
 Discuss Question
Answer: Option B. -> Methane gas and carbon dioxide
Answer: (b).Methane gas and carbon dioxide
Question 22. Which of the following are considered as contaminant gases in biogas?
  1.    Chlorine
  2.    Fluorine
  3.    Nitrogen, hydrogen and carbon monoxide
  4.    Methane gas and carbon dioxide
 Discuss Question
Answer: Option C. -> Nitrogen, hydrogen and carbon monoxide
Answer: (c).Nitrogen, hydrogen and carbon monoxide
Question 23. What are the two main products of anaerobic digestion?
  1.    Biogas and bio-fertilizer
  2.    Waste water
  3.    Producer gas
  4.    Syngas
 Discuss Question
Answer: Option A. -> Biogas and bio-fertilizer
Answer: (a).Biogas and bio-fertilizer
Question 24. Which of the following are used to store manure?
  1.    Silos and cellars
  2.    Plastic bottles
  3.    Glass bottles
  4.    Tin cans
 Discuss Question
Answer: Option A. -> Silos and cellars
Answer: (a).Silos and cellars
Question 25. Which of the following products of anaerobic digestion consists of organic humus and nutrients?
  1.    Biogas
  2.    Chlorine
  3.    Top soil
  4.    Bio-fertilizer
 Discuss Question
Answer: Option D. -> Bio-fertilizer
Answer: (d).Bio-fertilizer
Question 26. What are the three methods of pre-treatment of influent for anaerobic digestion?
  1.    Galvanization, pyrolysis and pre-heating
  2.    Mechanical treatment, pre-heating and thermal treatment
  3.    Galvanization, pyrolysis and thermal treatment
  4.    Pyrolysis, thermal treatment and pre-heating
 Discuss Question
Answer: Option B. -> Mechanical treatment, pre-heating and thermal treatment
Answer: (b).Mechanical treatment, pre-heating and thermal treatment
Question 27. Thermo-chemical processes have higher efficiencies than bio-chemical processes.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 28. Which of the following is best suited to decompose lignin?
  1.    Anerobic digestion
  2.    Fermentation
  3.    Thermo-chemical conversion techniques
  4.    Bio-chemical conversion techniques
 Discuss Question
Answer: Option C. -> Thermo-chemical conversion techniques
Answer: (c).Thermo-chemical conversion techniques
Question 29. Which of the following are types of pyrolysis?
  1.    Flash and ablative
  2.    Intermediate and anaerobic digestion
  3.    Anaerobic digestion and fermentation
  4.    Fermentation and intermediate
 Discuss Question
Answer: Option A. -> Flash and ablative
Answer: (a).Flash and ablative
Question 30. Bio-oil has double the heating value of conventional fuel oil.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False

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